Sorry to hear that. They are reaaly cool. I once had several in my 30 gallon. They were constant feeders but then, months into it I noticed them picking the substrate. Tried adding suplements, but they kept picking so I returned them in fear they'd starve in my tank. My water is suuuuuper soft.
Turns out I was wrong about the bamboo shrimp dying it's been a couple months since I put them in and I removed one dead one,and never saw another I assumed they all died. But one was out chillin on the rock today
I can't believe it!!